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AP EAMCET202420 May 2024Evening ShiftChemistryThermodynamics (C)Actual

The volume of an ideal gas contracts from 10.0 L to 2.0 L under an applied pressure of 2.0 atm . During contraction the system also evolved 900 J of heat. The change in internal energy (in J) involved in the system is ( 1 L atm .=101.3^ J )

Options

  1. A720.8
  2. B360.4
  3. C1620.8
  4. D810.4

Correct answer

A. 720.8

Step-by-step solution

Given, aligned & Heat released =-900 ~J & array l u = q + w =-900 ~J +(-2 ~atm (2-10) L ) =-900 ~J +16 Latm =-900 ~J +16 101.35 ~J =721.6 ~J array aligned

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